diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index 65d2b0b..3dafb71 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -1,3 +1,8 @@
+version 0.9.0a
+--------------
+
+- fix typo in 0.9.0
+
 version 0.9.0
 -------------
 
diff --git a/server/version.py b/server/version.py
index 7f90829..8128d70 100644
--- a/server/version.py
+++ b/server/version.py
@@ -1 +1 @@
-VERSION = "ElectrumX 0.9.0"
+VERSION = "ElectrumX 0.9.0a"